tag	line	file	source code
regbyte	416	drivers/sound/opl3.c	calc_vol (unsigned char *regbyte, int volume)
regbyte	418	drivers/sound/opl3.c	int             level = (~*regbyte & 0x3f);
regbyte	428	drivers/sound/opl3.c	*regbyte = (*regbyte & 0xc0) | (~level & 0x3f);